1.

A body is moved along a straight line by a machine delivering constant power . The distance moved by the body is time `t` is proptional toA. `t^(3//4)`B. `t^(3//2)`C. `t^(1//4)`D. `t^(1//2)`

Answer» Correct Answer - B
`P = Fv`
`P = mav`
`P = m(dv)/(dt).v`
`int vdv = int(P)/(m)dt`
`v^(2) prop t`
`v prop t^(1//2)`
`(dx)/(dt) prop t^(1//3)`
`dx prop t^(1//3) dt`
`x prop t^(2//3)`


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